Hi I have recently purchased Samsung D361i Camcoder. I got a cable where one end has Firewire (IEEE 1394) and other end is (USB) so i simply connected Firewire end to the DV cam and other end to my PC ( win XP SP2). It says "unknown device " . what else I should do ? have anyone tried this type of cable ? do I hav to buy Entire firewire cable set with PC card ?